Can't find long shear fasteners
Can't find long shear fasteners
(OP)
I'm in need of long (1 3/8" grip) 1/4" dia. shear fasteners (125+ ksi). There are plenty of 1/4" shear fasteners that fit the bill, but we can't find them in the -22 length. Any help would be appreciated.





RE: Can't find long shear fasteners
Some clarification on Your part is needed.
Head Style: Flush or protruding? Tension or shear rated? Flush-smooth, flush with recess-drive, hex, 2X-Hex, etc?
Bolts, Lock-bolts, Hi-Loks [or HL Style]
If threaded: short medium or long thread?
125-KSI FTu or FSu?
Steel, CRES, PH-CRES, A286, Inconel, Titanium, etc?
Temperature range [-65F] to: 250F, 300F, 450F, 600F, 800F, 1200F, etc?
Acceptable finish types such as bare [passivated], cadmium, SFL, Aluminum-Coating, IVD, Ti-Anodized, etc [to match temperature-range and material dissimilarities]?
Regards, Wil Taylor
RE: Can't find long shear fasteners
Frankly, at this point, I'll take most anything with an FSu of 125 ksi or better. First priority is some type of protruding head. I can use 100 degree flush head also, but must have protruding head. These fasteners will never see temperatures other than ambient. Preferred material is steel, but I'm not picky. We've always used cad plated fasteners in this application. I won't say cost isn't important, but it is of lesser concern.
lewbloms
RE: Can't find long shear fasteners
Wes C.
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RE: Can't find long shear fasteners
Sorry for the confusion. I want both protruding and flush head, but can do without the flush head if I have to. Ideally I'd like both.
lewbloms
RE: Can't find long shear fasteners
NAS6604-*, NAS6204-*, etc.
Try M+M Aerospace, Aviall, API, other typical aircraft fastener suppliers...
Steven Fahey, CET
RE: Can't find long shear fasteners
SPS Technologies
Aerospace Fasteners Group
301 Highland Avenue
Jenkintown, PA 19046
Phone: (215) 572-3000
As a last resort contact Tech Connect and give them a part number and request a supplier.
Tech Connect
Technology Transition Office
AFMC TTO/TTR Bldg. 22N
2690 C St STE 5
Wright-Patterson AFB, OH 45433-7412
1-800-203-6451
Stache
RE: Can't find long shear fasteners
OK You have a bit of a problem here. 125-KSI FSu is hard to attain... except using VHS alloys [NAS parts wont cut-it].
125-KSI FSu is possible with the following alloys [special processing is usually required]...
Inconel 718
PH13-8Mo
MP35N
MP159
4340M steel
H11 steel [gag...not recommended due to low SCC resistance]
MS21296 [260-KSI-FTU] or MS21297 [220-KSI-FTU] steel bolts are available.
Inconel 718 and Ph13-8Mo @125-KSI FSu are available as Hi-Lok Pins [see Hi-Shear/Hi-Lok website: http://hi-shear.com/fastener_hl_stds.htm ]
Hi-Shear also supplies Hi-Torque-recess Bolts [flush and protruding] in PH13-8Mo at 220-KSI FTu/125-KSI FSu.
SPS supplies Bolts in MP35N & MP159 Alloys [SAE AS7468 & AS7475] at 220-KSI FTu/125-KSI FSu.
Inconel 718 Tension Bolts come as MS14181 or Boeing BACB30US
Boeing also has Protruding shear-head Inconel 718 BACB30UU bolts at 125-KSI FSU [shear-head short thread].
Regards, Wil Taylor
RE: Can't find long shear fasteners
maybe the OP could clarify this point ... 125ksi is required for tension or for shear ?